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Finding the Fourth Proportional to 135.37, 203.33 and 103.51

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Solution

The fourth proportional to 135.37, 203.33 and 103.51 is: 155.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    135.37 : 203.33 = 103.51 : x
  2. Step 2: Convert to fraction form
    135.37/203.33 = 103.51/x
  3. Step 3: Cross multiply
    135.37x = 203.33 × 103.51
  4. Step 4: Simplify right side
    135.37x = 21,046.69
  5. Step 5: Solve for x
    x = 21,046.69/135.37
  6. Step 6: Final answer
    x = 155.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.